Wood left ELO, taking band members Bill Hunt (keyboards and french horn) and Hugh McDowell (cello) with him to form Wizzard, as well as ELO's sound engineer, Trevor Smith
That is why I thought Bakers Dozen had it.
I still think it's a great answer. But as will all quiz's, You never can tell.
I agree that the second one is probably Little Mix but it's a bit weak.
There was a 60s/70s group I remember called Main Ingredient but that's even weaker.
You put salt in pastry. Do some recipes include pepper? I'm thinking of Salt n Pepa.
As for the first one I can't immediately improve on ELO although I too think it doesn't quite work